LeetCode

JavaScript (JS) is a lightweight interpreted (or just-in-time compiled) programming language with first-class functions. While it is most well-known as the scripting language for Web pages, many non-browser environments also use it, such as Node.js, Apache CouchDB and Adobe Acrobat. JavaScript is a prototype-based, multi-paradigm, single-threaded, dynamic language, supporting object-oriented, imperative, and declarative (e.g. functional programming) styles.

Python is a programming language that lets you work quickly and integrate systems more effectively.

TypeScript is a strongly typed programming language that builds on JavaScript, giving you better tooling at any scale.

Achieve mastery through challenge. Improve your development skills by training with your peers on code kata that continuously challenge and push your coding practice.

Improve your coding skills by building realistic projects. Our professionally designed challenges help you gain hands-on experience writing HTML, CSS, and JavaScript. We create the designs so you can focus on the code and see your skills skyrocket!

Become a better frontend developer. Take your frontend skills to the next level by recreating real websites from real companies.

Whether you are an experienced programmer or not, this website is intended for everyone who wishes to learn programming with Unix/Linux shell interpreters.